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-rw-r--r--libraries/jbig2enc/leptonica_api_fix.diff37
1 files changed, 37 insertions, 0 deletions
diff --git a/libraries/jbig2enc/leptonica_api_fix.diff b/libraries/jbig2enc/leptonica_api_fix.diff
new file mode 100644
index 0000000000..ff36809052
--- /dev/null
+++ b/libraries/jbig2enc/leptonica_api_fix.diff
@@ -0,0 +1,37 @@
+diff --git a/configure.ac b/configure.ac
+index fe37c22..753a607 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -55,6 +55,7 @@ AC_CHECK_LIB([lept], [findFileFormatStream], [], [
+ echo "Error! Leptonica not detected."
+ exit -1
+ ])
++AC_CHECK_FUNCS(expandBinaryPower2Low,,)
+ # test for function - it should detect leptonica dependecies
+
+ # Check for possible dependancies of leptonica.
+diff --git a/src/jbig2.cc b/src/jbig2.cc
+index e10f042..515c1ef 100644
+--- a/src/jbig2.cc
++++ b/src/jbig2.cc
+@@ -130,11 +130,16 @@ segment_image(PIX *pixb, PIX *piximg) {
+ // input color image, so we have to do it this way...
+ // is there a better way?
+ // PIX *pixd = pixExpandBinary(pixd4, 4);
+- PIX *pixd = pixCreate(piximg->w, piximg->h, 1);
+- pixCopyResolution(pixd, piximg);
+- if (verbose) pixInfo(pixd, "mask image: ");
+- expandBinaryPower2Low(pixd->data, pixd->w, pixd->h, pixd->wpl,
++ PIX *pixd;
++#ifdef HAVE_EXPANDBINARYPOWER2LOW
++ pixd = pixCreate(piximg->w, piximg->h, 1);
++ pixCopyResolution(pixd, piximg);
++ expandBinaryPower2Low(pixd->data, pixd->w, pixd->h, pixd->wpl,
+ pixd4->data, pixd4->w, pixd4->h, pixd4->wpl, 4);
++#else
++ pixd = pixExpandBinaryPower2(pixd4, 4);
++#endif
++ if (verbose) pixInfo(pixd, "mask image: ");
+
+ pixDestroy(&pixd4);
+ pixDestroy(&pixsf4);